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[Merged by Bors] - feat(Algebra/DirectSum/Decomposition): degree of a non-zero homogeneous element is unique #9597

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jjaassoonn
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if $x \in M = \bigoplus M_i$ is not $0$ such that $x \in M_i$ and $x \in M_j$, then $i = j$


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@jjaassoonn jjaassoonn added awaiting-review The author would like community review of the PR awaiting-CI t-algebra Algebra (groups, rings, fields etc) labels Jan 9, 2024
Co-authored-by: Junyan Xu <junyanxu.math@gmail.com>
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maintainer merge

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🚀 Pull request has been placed on the maintainer queue by alreadydone.

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Thanks 🎉

bors merge

@leanprover-community-mathlib4-bot leanprover-community-mathlib4-bot added ready-to-merge This PR has been sent to bors. and removed awaiting-review The author would like community review of the PR labels Jan 10, 2024
mathlib-bors bot pushed a commit that referenced this pull request Jan 10, 2024
…us element is unique (#9597)

if $x \in M = \bigoplus M_i$ is not $0$ such that $x \in M_i$ and $x \in M_j$, then $i = j$
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mathlib-bors bot commented Jan 10, 2024

Pull request successfully merged into master.

Build succeeded:

@mathlib-bors mathlib-bors bot changed the title feat(Algebra/DirectSum/Decomposition): degree of a non-zero homogeneous element is unique [Merged by Bors] - feat(Algebra/DirectSum/Decomposition): degree of a non-zero homogeneous element is unique Jan 10, 2024
@mathlib-bors mathlib-bors bot closed this Jan 10, 2024
@mathlib-bors mathlib-bors bot deleted the zjj/DirectSum/Decomposition/degree_eq_of_mem_mem branch January 10, 2024 07:22
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4 participants